What happened to Anna’s Presentation?

This is from a Baha’i friend. I wonder if Baha’is can reply to this.

It is difficult to find this — once popular — presentation!
A recent post reminded me of Anna’s presentation. At one point I and my community (in the US) went through rigorous training to memorize it, never deviate from the script, and not allow ourselves to be sidetracked. I remember being told this was the best and proven method for direct teaching at the time, so we knocked on a lot of doors aiming to present it using all sorts of scripts and flipcharts. But I haven’t heard anyone mention it in a long time, granted I’m less involved than I used to be. I take it it’s still part of Book 2, but is it still the preferred form of teaching?